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Articles from A Linux SysAd Blog

totally squeezed out multiple blank lines 2007-09-12 09:34:00 Well, just popped out from my mind based from privious linux blog entry. Have you ever tried editing a thousand lines of configuration file and 70% of the lines were commented? Yes, you can filter... [[ This is a content summary only. Visit my website for full links, other content, and more! ]] ...

squeezed multiple blank lines into single line 2007-09-12 09:27:00 Here's a way to squeeze multiple blank lines of a text file into a single line using more. # cat... [[ This is a content summary only. Visit my website for full links, other content, and more! ]] ...

fmt - simple optimal text formatter 2007-09-12 08:58:00 Here's a quick and simple command line drive text formatter using fmt. Fmt binary file is part of fedora core utility package from GNU. Fmt reformats a a human readable file based on columnar value... [[ This is a content summary only. Visit my website for full links, other content, and more! ]] ...

Linux backup powered by RDiff-Backup 2007-09-12 06:36:00 I have been covering linux back tools with my recent linux blog entries. Here's another alternative on doing linux backups using rdiff-backup. Rdiff-backup is similar to rsync linux command.... [[ This is a content summary only. Visit my website for full links, other content, and more! ]] ...

Linux Ping command explained 2007-09-11 05:13:00 We have always been using ping command ever since the network begun. Ping has been in the service for gazillions of echo requests and replies locally and/or from the web. Almost everybody doing link... [[ This is a content summary only. Visit my website for full links, other content, and more! ]] ...

read and display text file from terminal 2007-09-10 16:17:00 A simple request to read and display text file from terminal as always been used from this linux blog site. Here are a few approach to achieve that: # cat testfile.txt # more testfile.txt # less... [[ This is a content summary only. Visit my website for full links, other content, and more! ]] ...

URLView - URL and email extractor 2007-09-10 07:20:00 Although we can make use of combining linux commands like cut, awk and grep to parse URL and email address string from a file, here's an entry to parse URL link and email address from a file. A lot... [[ This is a content summary only. Visit my website for full links, other content, and more! ]] ...

TFTP server - setup and install howto 2007-09-10 05:13:00 The Trivial File Transfer Protocol (TFTP) is normally used only for booting diskless workstations. The tftp-server package provides the server for TFTP, which allows users to transfer files to and... [[ This is a content summary only. Visit my website for full links, other content, and more! ]] ...

NMap - Linux port scanning 2007-09-10 01:54:00 How to know which port is open from unmanaged remote host? How to determine running application and services from remote host? How to do basic port scanning against a host? How to confirm ports... [[ This is a content summary only. Visit my website for full links, other content, and more! ]] ...

removing garbage characters from screen terminal 2007-09-09 16:21:00 You were playing with linux commands and special files, then suddenly all screen characters from current ssh session becomes unreadable. Unreadable in such a way that all string screen characters... [[ This is a content summary only. Visit my website for full links, other content, and more! ]] ...

invert string match using grep 2007-09-09 15:39:00 Man grep A regular expression is a pattern that describes a set of strings. Regular expressions are constructed analogously to arithmetic expressions, by using various operators to combine smaller... [[ This is a content summary only. Visit my website for full links, other content, and more! ]] ...

RDesktop - remote desktop howto 2007-09-08 04:21:00 We can never remove the fact that some companies still use any other desktop operating systems from their network. Several reasons for these are due to commercial and propriety softwares and... [[ This is a content summary only. Visit my website for full links, other content, and more! ]] ...

Graveman on Linux - burn baby burn burn 2007-09-07 13:20:00 Linux is full of alternatives. Having a lot of free opensource alternatives is what makes Linux world go interestingly round and round. Here's another alternative on handling DVD/CD linux... [[ This is a content summary only. Visit my website for full links, other content, and more! ]] ...

HTOP - interactive process viewer alternative 2007-09-07 12:12:00 HTOP This is HTOP, an interactive process viewer for Linux. It is a text-mode application (for console or X terminals) and requires ncurses. Tested with Linux 2.4 and 2.6. HTOP process viewer is not... [[ This is a content summary only. Visit my website for full links, other content, and more! ]] ...

Caching DNS server install howto 2007-09-07 06:14:00 BIND DNS are nameservers responsible basically for resolving domain names or hostnames into their equivalent IP addresses. Websites or domain names have their own equivalent IP addresses that are... [[ This is a content summary only. Visit my website for full links, other content, and more! ]] ...